(33) 



*4>zz: — Tcof./», 



^^ = ~Trm.p-hT'Citt.q, 



^ =: T cof.p — T^cof. 7, 



SJJ^ z= — T'' fin. a H- T'^ fin. r 

 dt ' 



li2: — -hT^cof.^ — ^'''cof.r. 



dt ^ 



Hinc autem formentur fequcntes combinationcsr 

 Aax-4-BJx- — T^fin.y 



A3>-4-R^y — — T-^cof.J 



c/f ^ 



A ^X-f-B^X^-l-C .Jx''' . 



zrT^^^fm.r, 



<*f 

 A3>-HBjy-4-c^y - T''^ cof. f . 



<y( 



§. lo. Ex his iam .aequationibiis facile cllminantnr 

 tcnfiones T, T^ et T^\ quippc quae funt incognitae, nihilquc 

 ad inrtitutum refcrt cas noffe i tum autcm ad tres irtas aequa- 

 tioncs peruenietur: 



1- j5 = — tang.p; 



II. ii£±JLl£l — — tang.^; 



III. /u ^r-HB,^xJ-HCJx- ---_ 



quibus adiungi oportct ncquationcm iam fupra inucntam 



j' — fl cof.p -h^ cof. 7 H-r cof. r , 



in quibus acquationibus , fi loco x\ x^^ et y\ y^^ fub(h'tuan« 

 tur valores fupra alhgnati, inerunt adhuc hnc quinquc variabi- 

 lcs : .Y, j, /J, 7, r, quarum crgo quatcrnas per quintiun dcfiniri 

 oportet. 



§. II. Subflituamus igitur loco x\ x'^ tx. y\ y^ {\iQ% 

 ralorcs, ct cum fit 



houa Aila Acad. In/p. Sf. T. 11. £ Jr^z= 



